Allocation of Resources Without Limits or Throttling Affecting libcurl package, versions <0:7.61.1-25.el8_7.3


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-CENTOS8-LIBCURL-3324678
  • published17 Feb 2023
  • disclosed15 Feb 2023

Introduced: 15 Feb 2023

CVE-2023-23916  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Centos:8 libcurl to version 0:7.61.1-25.el8_7.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl package and not the libcurl package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.

CVSS Scores

version 3.1